Home / 124,928.64-172,401.75-68,340.02

Finding the Fourth Proportional to 124,928.64, 172,401.75 and 68,340.02

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Solution

The fourth proportional to 124,928.64, 172,401.75 and 68,340.02 is: 94,309.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,928.64 : 172,401.75 = 68,340.02 : x
  2. Step 2: Convert to fraction form
    124,928.64/172,401.75 = 68,340.02/x
  3. Step 3: Cross multiply
    124,928.64x = 172,401.75 × 68,340.02
  4. Step 4: Simplify right side
    124,928.64x = 11,781,938,181.03
  5. Step 5: Solve for x
    x = 11,781,938,181.03/124,928.64
  6. Step 6: Final answer
    x = 94,309.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.